From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hiroshi Shimamoto Subject: Re: [PATCH -rt] rt-slab: fix cpu inconsistency case Date: Mon, 24 Mar 2008 13:54:10 -0700 Message-ID: <47E814F2.6000208@ct.jp.nec.com> References: <47E2A63B.4020003@ct.jp.nec.com> <47E2C4CC.5050401@ct.jp.nec.com> <47E41EDB.7030908@ct.jp.nec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Ingo Molnar , Thomas Gleixner , linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org To: Steven Rostedt Return-path: Received: from gateway-1237.mvista.com ([63.81.120.158]:33526 "EHLO gateway-1237.mvista.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752877AbYCXUyN (ORCPT ); Mon, 24 Mar 2008 16:54:13 -0400 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: Steven Rostedt wrote: > On Fri, 21 Mar 2008, Hiroshi Shimamoto wrote: >>> Is this a bug in mainline? The !PREEMPT_RT case should be as close to >>> mainline as possible, with no actual changes in object code. If this is >>> not the case, then we need to fix that. >> No, this issue is in -rt only. >> > > Hi Hiroshi, > > Thanks again for reporting this. I took a deeper look into this today and > came to the conclusion that we need to get rid of both > slab_irq_disable_nort and slab_irq_disable_rt, and simply use > slab_irq_disable ;-) thanks for taking time. > > This is what you patch indirectly does. I'll write up another patch to fix > this. Sounds smarter. > > Thanks, > > -- Steve > > P.S. I'm hoping to get -rt4 out today. I'll test it on my box when released. thanks, Hiroshi Shimamoto